List of Blake's 7 episodes

Blake's 7 is a British science fiction television series that was created by Terry Nation and produced by the British Broadcasting Corporation (BBC). Four series were produced between 2 January 1978 and 21 December 1981, all of which have been released on VHS and Region 2 DVD. From September 2021 to June 2022, Forces TV began airing repeats of all 52 episodes of Blake's 7 for the first time; this was followed by a weekly re-run on GBTV from January 2022.

The following cast members made regular appearances in Blake's 7:

Liberator and Scorpio Crew

 * Gareth Thomas – Roj Blake (series 1–2 as a regular and series 3–4 as a guest)
 * Sally Knyvette – Jenna Stannis (series 1–2)
 * Paul Darrow – Kerr Avon (series 1–4)
 * Michael Keating – Vila Restal (series 1–4; the only Blake's 7 actor to appear in all 52 episodes)
 * David Jackson – Olag Gan (series 1–2)
 * Jan Chappell – Cally (series 1–3)
 * Peter Tuddenham – Zen / Orac / Slave (as voices; series 1–4)
 * Josette Simon – Dayna Mellanby (series 3–4)
 * Steven Pacey – Del Tarrant (series 3–4)
 * Glynis Barber – Soolin (series 4 only)

Villains

 * Jacqueline Pearce – Servalan (series 1–4)
 * Stephen Greif – Travis I (series 1 only)
 * Brian Croucher – Travis II (series 2 only)

Season 1 (1978)
Season 1 aired on BBC1, Mondays, mostly 7:15 p.m., 2 January 1978 to 27 March 1978, Producer: David Maloney. It averaged 9.22 million viewers on original airing in the UK, with an average chart position of 45.

Season 2 (1979)
Season 2 aired on BBC1, Tuesdays, mostly 7:20 p.m., 9 January 1979 to 3 April 1979. Producer: David Maloney. It averaged 7.14 million viewers on original airing in the UK, with an average chart position of 79, a drop of over two million viewers on that of Series A.

Season 3 (1980)
Season 3 aired on BBC1, Mondays, mostly 7:15 p.m., 7 January 1980 to 31 March 1980. Producer: David Maloney. It averaged 9.45 million viewers on original airing in the UK, with an average chart position of 32, the highest rated series.

Season 4 (1981)
Season 4 aired on BBC1, Mondays, mostly 7:15 p.m., 28 September 1981 to 21 December 1981. Producer: Vere Lorrimer. It averaged 8.49 million viewers on original airing in the UK, with an average chart position of 74, a drop of about a million viewers on that of Series 3, and a chart position on par with that of Series 2.